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In his two books First Principles of Soil Science (1857, 2nd ed. 1865) and Pedology or General and Special Soil Science (1862) Friedrich Albert Fallou developed his collected field observations of soil into a systematic approach. He explained why soil formation was worthy of study and appealed for recognition of soil science as a discipline. In ...
He explained why soil formation was worthy of study and appealed for recognition of soil science as a discipline. [5] [14] In the 1862 work, he presented a proposal for soil profile description, discussed the physical and chemical properties of soils, and proposed classification of soils based on mineral properties. [15]
Earthworks ditch and rampart in Germany - age prehistorical prior to 300 BC In military engineering , earthworks are, more specifically, types of fortifications constructed from soil. Although soil is not very strong, it is cheap enough that huge quantities can be used, generating formidable structures.
The outcrops of the Trossingen Formation are characterized by so-called “hummocky” meadows. It forms very heavy soils (minute soil), which can be recognized by typical tree growth (crooked and leaning trees), and is prone to frequent landslides after rainfall. [3] Tuberous marl landscapes can often only be used for orchards. [2]
American soil scientist Hans Jenny published in 1941 [128] a state equation for the factors influencing soil formation: S = f(cl, o, r, p, t, ...) S soil formation; cl (sometimes c) climate; o organisms (soil microbiology, soil mesofauna, soil biology) r relief; p parent material; t time; This is often remembered with the mnemonic Clorpt.
A represents soil; B represents laterite, a regolith; C represents saprolite, a less-weathered regolith; beneath C is bedrock. Saprolite is a chemically weathered rock. Saprolites form in the lower zones of soil profiles and represent deep weathering of the bedrock surface. In most outcrops, its color comes from ferric compounds.
Soil Profile on Chalk at Seven Sisters Country Park, England. Pedology (from Greek: πέδον, pedon, "soil"; and λόγος, logos, "study") is a discipline within soil science which focuses on understanding and characterizing soil formation, evolution, and the theoretical frameworks for modeling soil bodies, often in the context of the natural environment. [1]
Eugene Woldemar Hilgard (January 5, 1833 – January 8, 1916) was a German-American expert on pedology (the study of soil resources). An authority on climate as a soil forming factor, soil chemistry and reclamation of alkali soils, he is considered as the father of modern soil science in the United States.